Making a book is a long process. Luckily the Internet is full of great and mostly free resources to teach your kid (and yourself) programming skills while we wait for little Ruby.
In the list below I've included products I've tried myself. There are books, interactive tutorials, robots, games, apps, and course - so so many great things to try out.
Finding the right product or motivation for your kid is the key. Some kids love making games. Others enjoy writing stories. One little boy I taught got very excited about "hacking" existing websites with Chrome Inspect Element tool. Another girl wanted to learn Java to make Minecraft mods.
You don't need to be a professional developer to get kids started in programming. Many of the products include lightweight curriculums and roadmaps to help the kid learn more. One of the most important qualities of a programmer is the ability to figure out problems. Googling is allowed!
This is not a conclusive list - I'd love to hear more recommendations from you in the comments.
For the smallest ones (5-8)
Hopscotch and Kodable. iPad applications for teaching foundations of programming.
